Seamless webbing loop of rock climbing quickdraw

ABSTRACT

A seamless webbing loop of a rock climbing quickdraw is disclosed in the disclosure, the webbing loop includes a winding yarn and a webbing. The winding yarn is an annular yarn formed by a single yarn that winds into circles or formed by a plurality of combined closed annular coils; the winding has an annular shape, and is provided with an opening on its radially inner face, where the opening is configured to receive the annular yarn, so that the annular yarn can be wrapped by the winding; and the webbing loop of rock climbing quickdraw is sewn with a stitching thread. The annular yarn formed by winding overcomes the defect of the seam between the abutted ends of a webbing in the prior art, thus making the webbing loop more strong and safe. The disclosure has simple processes and is strong, safe and durable, and is seamless after the webbing loop is sewn.

TECHNICAL FIELD

The present disclosure relates to the field of rock climbing equipmentand technologies, in particular, to a seamless webbing loop of a rockclimbing quickdraw.

TECHNICAL BACKGROUND

With social development and popularity of sports, more and more peopleparticipate in physical exercise, and more and more sporting equipmentemerge accordingly. In the field of rock climbing equipment andtechnologies, a quickdraw in the prior art generally employs a webbingof high strength, both ends of which are abutted against each other andthen sewn together by a sewing machine. Such a webbing loop has a lowcost and is easy to produce. However, a seam exists between the abuttedand sewn both ends of the webbing, and the sewn portion of the webbingloop is subjected to relatively concentrated stress when the webbingloop is applied by a load and hence may be likely broken, leading to asecurity risk.

SUMMARY

A seamless webbing loop of a rock climbing quickdraw is disclosed. Thewebbing loop is easy to produce, but is strong, safe and practical, andis seamless after the webbing loop is sewn.

The present disclosure adopts the following technical solution.

A seamless webbing loop of a rock climbing quickdraw, including awinding yarn and a webbing; the winding yarn is an annular yarn formedby a single yarn that winds into circles or formed by a plurality ofcombined closed annular coils; the winding has an annular shape, and isprovided with an opening on its radially inner face, where the openingis configured to receive the annular yarn, so that the annular yarn canbe wrapped by the winding; the quickdraw is sewn with a stitchingthread.

Wherein, the webbing is a polyester webbing with high strength of asingle layer structure.

Wherein, the annular yarn is a wire formed by a tetoron filament or anylon filament.

Wherein, a diameter of the wire is greater than or equal to 0.08 mm andless than or equal to 5 mm.

Wherein, a perimeter of an outer contour of the webbing is slightlygreater than that of the annular yarn.

Wherein, a diameter of a cross section of the webbing is slightlygreater than that of the annular webbing.

Wherein, the stitching thread is a wire made by a tetoron filament or anylon filament.

The beneficial effects of the disclosure are as follows. A seamlesswebbing loop of a rock climbing quickdraw in the disclosure includes awinding yarn and a webbing. The winding yarn is an annular yarn formedby a single yarn that winds into circles or formed by a plurality ofcombined closed annular coils; the winding has an annular shape, and isprovided with an opening on its radially inner face, where the openingis configured to receive the annular yarn, so that the annular yarn canbe wrapped by the winding; and the quickdraw is sewn with a stitchingthread. The annular yarn formed by winding overcomes the defect of theseam between the abutted ends of a webbing in the prior art, thus makingthe quickdraw more strong and safe. The disclosure has simple processesand is strong, safe and durable, and is seamless after the webbing loopis sewn.

DESCRIPTION OF DRAWINGS

FIG. 1 is a schematic diagram showing the structure of a webbing of aseamless webbing loop of a rock climbing quickdraw according to thedisclosure;

FIG. 2 is a schematic diagram showing the structure of a winding yarn ofthe seamless webbing loop of the rock climbing quickdraw according tothe disclosure; and

FIG. 3 is a schematic diagram showing the structure of the seamlesswebbing loop of the rock climbing quickdraw according to the disclosure.

A list of the reference numerals:

1: Webbing; 2: Opening; 3: Winding Yarn; 4: Stitching thread; 5: WebbingLoop of rock climbing Quickdraw.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The technical solution of the disclosure will be further described byway of embodiments below in conjunction with the accompanying FIGS. 1 to3.

A seamless webbing loop of a rock climbing quickdraw is disclosed. Aquickdraw 5 includes a winding yarn 3 and a webbing 1. The winding yarn3 is an annular yarn formed by a single yarn that winds into circles orformed by a plurality of combined closed annular coils; the winding 1has an annular shape, and is provided with an opening 2 on its radiallyinner face, where the opening 2 is configured to receive the annularyarn, so that the annular yarn can be wrapped by the winding 1; and thequickdraw 5 is sewn with a stitching thread 4. By wrapping the windedannular yarn in the annular webbing with the opening, and then sewingthe webbing by a sewing machine, the quickdraw is made safe andpractical. The annular yarn formed by winding overcomes the defect ofthe seam between the abutted ends of a webbing in the prior art, thusmaking the quickdraw more strong and safe. The webbing loop for a rockclimbing quickdraw in the present disclosure may be manufactured by asimple process, but is strong, safe and durable, and is seamless afterthe webbing loop is sewn.

The webbing 1 is a polyester webbing with high strength of a singlelayer structure. The high-strength polyester webbing has high tensilestrength, is strong and wearable, and is suitable for use in outdoorrock climbing.

The annular yarn is a wire formed by a tetoron filament or a nylonfilament, or a wire with other materials.

A diameter of the wire is greater than or equal to 0.08 mm and less thanor equal to 5 mm. A thickness of the wire can be selected based on aload-bearing capability and a thickness of a quickdraw actually used.

A perimeter of an outer contour of the webbing is slightly greater thanthat of the annular yarn, so that the webbing wraps the annular yarncompletely.

A diameter of a cross section of the webbing 1 is slightly greater thanthat of the annular webbing.

The stitching thread 4 is a wire made by a tetoron filament or a nylonfilament, or other wires which are strong and durable and adopted forsewing.

The technical principles of the disclosure have been described inconjunction with the embodiments as above. The description is onlyintended to explain the principles of the disclosure, but not to limitthe disclosure. Based on the explanation herein, other embodiments canbe conceived by those skilled in the art without inventive working, thusthese embodiments should be included within the protection scope of thedisclosure.

1. A seamless webbing loop of a rock climbing quickdraw, comprising awinding yarn and a webbing; the winding yarn is an annular yarn formedby a single yarn that winds into circles or formed by a plurality ofcombined closed annular coils; the winding has an annular shape, and isprovided with an opening on its radially inner face, where the openingis configured to receive the annular yarn, so that the annular yarn canbe wrapped by the winding; and the webbing loop of rock climbingquickdraw is sewn with a stitching thread.
 2. The seamless webbing loopof the rock climbing quickdraw according to claim 1, wherein, thewebbing is a polyester webbing with high strength of a single layerstructure.
 3. The seamless webbing loop of the rock climbing quickdrawaccording to claim 1, wherein, the annular yarn is a wire formed by atetoron filament or a nylon filament.
 4. The seamless webbing loop ofthe rock climbing quickdraw according to claim 3, wherein, a diameter ofthe wire is greater than or equal to 0.08 mm and less than or equal to 5mm.
 5. The seamless webbing loop of the rock climbing quickdrawaccording to claim 1, wherein, a perimeter of an outer contour of thewebbing is slightly greater than that of the annular yarn.
 6. Theseamless webbing loop of the rock climbing quickdraw according to claim1, wherein, a diameter of a cross section of the webbing is slightlygreater than that of the annular yarn.
 7. The seamless webbing loop ofthe rock climbing quickdraw according to claim 1, wherein, the stitchingthread is a wire made by a tetoron filament or a nylon filament.